Windows Phone 7 is really building up a head of steam, as AT&T and Microsoft are said to be planning a debut event for new handsets on October 11 in the US, to be followed by a retail launch in the week commencing November 8. A trifecta of launch devices is on tap, says the Wall Street Journal , with one each from LG , Samsung and HTC , and AT&T is unsurprisingly fingered as the exclusive early carrier for WP7 goodness. In exchange for that little favor, Microsoft will receive AT&T’s ” marketing support ” in pushing the message out about Windows Phone 7′s release. So long as nobody decides that home party packs are a good idea, we’ll be cool with whatever. AT&T launching Windows Phone 7 handsets on November 8, unveiling them October 11? originally appeared on Engadget on Fri, 01 Oct 2010 08:09:00 EDT. Please see our terms for use of feeds . Permalink